java球球大作战_java实现简单窗体小游戏----球球大作战

需求分析

1、分析小球的属性：

坐标、大小、颜色、方向、速度

2、抽象类：Ball

设计类：BallMain—创建窗体

BallJPanel—画小球

BallAndBall—处理小球之间的关系

3、流程：

1)小球的绘制

2)产生小球，让一个小球进行运动，多个小球的运动

3)小球进行碰撞

4)实现大球吃小球

源代码如下：

Ball.javaimport java.awt.Color;

import java.awt.Font;

import java.awt.Graphics;

public class Ball {

/* 小球的基本属性 */

int x, y;//定义x, y坐标

int d;//直径

Color ballColor;//小球的颜色

int speed;//小球的运动速度

int position;//小球的运动方向

/*小球的运动方向*/

public static final int LEFT_UP = 0;//左上

public static final int RIGHT_UP = 1;//右上

public static final int LEFT_DOWN = 2;//左下

public static final int RIGHT_DOWN = 3;//右下

/*构造方法*/

public Ball(int x, int y, int position, int d, int speed, Color ballColor){

this.x = x;

this.y = y;

this.position = position;

this.d = d;

this.speed = speed;

this.ballColor = ballColor;

}

//构造玩家球

public Ball(int x, int y, int d, int speed, Color ballColor){

this.x = x;

this.y = y;

this.d = d;

this.speed = speed;

this.ballColor = ballColor;

}

//画小球

public void drawBall(Graphics g){

g.setColor(ballColor);

g.fillOval(x, y, d, d);

}

public void drawBall2(Graphics g){

g.setColor(ballColor);

g.fillOval(x, y, d, d);

//球加文字

g.setColor(Color.RED);

//设置字体大小

Font font = new Font(Font.DIALOG, Font.BOLD, 14);

g.setFont(font);

g.drawString("^_^", x+d/2, y+d/2);

}

//小球的运动方向

public void ballMove(){

switch (this.position) {

case LEFT_UP:

x -= speed;

y -= speed;

if (x <= 0) {

this.position = RIGHT_UP;

}else if (y <= 0) {

this.position = LEFT_DOWN;

}

break;

case RIGHT_UP:

x += speed;

y -= speed;

if (x >= BallMain.SCREEN_WIDTH - d) {

this.position = LEFT_UP;

}else if (y <= 0) {

this.position = RIGHT_DOWN;

}

break;

case LEFT_DOWN:

x -= speed;

y += speed;

if (x <= 0) {

this.position = RIGHT_DOWN;

}else if (y >= BallMain.SCREEN_HEIGHT - d) {

this.position = LEFT_UP;

}

break;

case RIGHT_DOWN:

x += speed;

y += speed;

if (x >= BallMain.SCREEN_WIDTH - d) {

this.position = LEFT_DOWN;

}else if (y >= BallMain.SCREEN_HEIGHT - d) {

this.position = RIGHT_UP;

}

break;

}

BallMain.javaimport java.awt.Dimension;

import java.awt.Toolkit;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import javax.swing.JFrame;

import sun.audio.AudioData;

import sun.audio.AudioPlayer;

import sun.audio.AudioStream;

import sun.audio.ContinuousAudioDataStream;

/*创建窗体*/

public class BallMain extends JFrame{

//窗体的宽高

public static final int SCREEN_WIDTH = 1360;

public static final int SCREEN_HEIGHT = 760;

//全屏

Dimension d = Toolkit.getDefaultToolkit().getScreenSize();

int width = (int)d.getWidth();

int height = (int)d.getHeight();

public BallMain(){

this.setTitle("V1.0");

//设置位置

this.setBounds(0,0,SCREEN_WIDTH,SCREEN_HEIGHT);

//添加小球到窗体

BallJPanel bj = new BallJPanel();

this.add(bj);

//添加键盘的监听事件

this.addKeyListener(bj);

/*frame.addKeyListener(tj);

tj.addKeyListener(tj);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setVisible(true);

}

public static void main(String[] args) {

BallMain b = new BallMain();

//添加音乐

try {

FileInputStream f =new FileInputStream("music/yyyy.wav");

AudioStream as = new AudioStream(f);

AudioPlayer.player.start(as);

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

BallJPanel.javaimport java.awt.Color;

import java.awt.Graphics;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import javax.imageio.ImageIO;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

/*画小球*/

public class BallJPanel extends JPanel implements KeyListener{

//存储小球的集合

List ballList = new ArrayList();

int x1 = 450;

int y1 = 450;

int d1 = 40;

private Color white;

//玩家球

Ball game = new Ball(x1, y1, d1, 50, white);

//小球的数量

private int ballNumber = 100;

public BallJPanel(){

addBall();

startBalls();

}

//产生小球的方法

public void addBall(){

for (int i = 0; i

//随机产生100个小球

int x = (int)(Math.random()*BallMain.SCREEN_WIDTH);

int y = (int)(Math.random()*BallMain.SCREEN_HEIGHT);

int position = (int)(Math.random()*4);

//int d = (int)(Math.random()*50 + 1);

int d = 20;

int speed = 1;

//颜色三原色 R G B

int red = (int)(Math.random()*255 + 1);

int green = (int)(Math.random()*255 + 1);

int blue = (int)(Math.random()*255 + 1);

Color ballColor = new Color(red, green, blue);

Ball b = new Ball(x, y, position, d, speed, ballColor);

//将小球添加到集合中

ballList.add(b);

}

public void paint(Graphics g){

super.paint(g);

BufferedImage img =null;

//添加图片

try {

img = ImageIO.read(new File("music/timg.png"));

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

g.drawImage(img, 0, 0, 1360, 760, this);

this.setBackground(Color.CYAN);

for (int i = 0; i

Ball ball = ballList.get(i);

ball.drawBall(g);

}

//玩家

game.drawBall2(g);

}

public void startBalls(){

//启动线程-----匿名内部类

new Thread(){

public void run() {

while (true) {

//遍历小球集合

for (int i = 0; i

//取出小球

Ball b = ballList.get(i);

//让每一个小球进行移动

b.ballMove();

}

for (int i = 0; i

//先取第一个小球

Ball b1 = ballList.get(i);

for (int j = i+1; j

Ball b2 = ballList.get(j);

BallAndBall bad = new BallAndBall();

//bad.ballCrach(b1, b2);

if(bad.isBallCrach(b1, b2)){

if (b1.d >= b2.d) {

b1.d += b2.d/3;

ballList.remove(b2);

break;

}else if(b1.d

b2.d += b1.d/3;

ballList.remove(b1);

break;

}

if (bad.isBallCrach(b1, game)) {

if (b1.d > game.d) {

System.out.println("GAME OEVR");

JOptionPane.showMessageDialog(null, "GAME OVER");

return;

}else{

game.d += b1.d/3;

ballList.remove(b1);

break;

}

repaint();//重绘

try {

Thread.sleep(5);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

};

}.start();

}

@Override

public void keyTyped(KeyEvent e) {

// TODO Auto-generated method stub

}

@Override

public void keyPressed(KeyEvent e) {

// TODO Auto-generated method stub

if (e.getKeyCode() == KeyEvent.VK_UP) {

//System.out.println("点击了上方向键");

game.y -= 10;

}

if (e.getKeyCode() == KeyEvent.VK_DOWN) {

//System.out.println("点击了下方向键");

game.y += 10;

}

if (e.getKeyCode() == KeyEvent.VK_LEFT ) {

//System.out.println("点击了左方向键");

game.x -= 15;

}

if (e.getKeyCode() == KeyEvent.VK_RIGHT) {